585,754 active members*
3,799 visitors online*
Register for free
Login
IndustryArena Forum > CNC Electronics > Dmm Technology > Dmm Servo Spindle Setup Mach 3
Page 1 of 2 12
Results 1 to 20 of 31

Hybrid View

  1. #1
    Join Date
    Aug 2009
    Posts
    20

    Dmm Servo Spindle Setup Mach 3

    Its been a long time since I've retrofitted my G0704 with Dmm Servos. It has been working perfectly fine and haven't had to set anything up since I first installed it. I got one of their large servo motors to use as a spindle when I get around to it or my stock motor dies. Needless to say it sounds like its time to be put to rest and replaced with the ac servo.

    I am using ESS and Mach 3

    The wiring I shouldn't have any problem with, but setting it up software wise to work with mach 3 to use as a spindle I got no clue.

    Any help is much appreciated

  2. #2
    Join Date
    Dec 2013
    Posts
    5717

    Re: Dmm Servo Spindle Setup Mach 3

    Jim Dawson
    Sandy, Oregon, USA

  3. #3
    Join Date
    Sep 2009
    Posts
    38

    Re: Dmm Servo Spindle Setup Mach 3

    I'm still in the going to get to it stage. My concern is the high minimum step count, combined with the high speed of the spindle and no ess. Dmm said that they could write firmware to lower step count.

  4. #4
    Join Date
    Jan 2005
    Posts
    15362

    Re: Dmm Servo Spindle Setup Mach 3

    Quote Originally Posted by HCE View Post
    I'm still in the going to get to it stage. My concern is the high minimum step count, combined with the high speed of the spindle and no ess. Dmm said that they could write firmware to lower step count.
    Others are using the same servo motor as you are and I don't think anyone has had a problem of reaching max motor speed you can work with the drive gearing to lower the step rate
    Mactec54

  5. #5
    Join Date
    Sep 2009
    Posts
    38

    Re: Dmm Servo Spindle Setup Mach 3

    Quote Originally Posted by mactec54 View Post
    Others are using the same servo motor as you are and I don't think anyone has had a problem of reaching max motor speed you can work with the drive gearing to lower the step rate
    Seems there are a few that have started with the step and direction option, kind of get working, and end up using the analog input route via a pwm to analog convertor.
    2000 steps per rev is the lowest electronic gearing allows.

  6. #6
    Join Date
    Dec 2013
    Posts
    5717

    Re: Dmm Servo Spindle Setup Mach 3

    Quote Originally Posted by HCE View Post
    2000 steps per rev is the lowest electronic gearing allows.

    I think that depends on which firmware rev. you have, the newer systems are 500 minimum. All of the ones that I have bought in the last 1.5 years have been 500 minimum.
    Jim Dawson
    Sandy, Oregon, USA

  7. #7
    Join Date
    Sep 2009
    Posts
    38

    Re: Dmm Servo Spindle Setup Mach 3

    Quote Originally Posted by Jim Dawson View Post
    I think that depends on which firmware rev. you have, the newer systems are 500 minimum. All of the ones that I have bought in the last 1.5 years have been 500 minimum.
    Maybe I am reading the instructions wrong or theses are old instructions, but I understand 500 to be gear number.

    Electronic Gearing ( GEAR_NUM Parameter )
    Gear number (Gear_Num) is set from 500 to 16,384, default value is 4,096. Gear number provides an
    electrical gear ratio: 4096 / Gear_Num, from 0.25 ~ 8.192. For example, if Gear number = 4,096, then
    16,384 input counts from pulse will turn motor exactly one revolution. If Gear number = 500, 2,000 pulses
    will turn motor one revolution. Gear number parameter is only applicable to position servo mode.

  8. #8
    Join Date
    Jan 2005
    Posts
    15362

    Re: Dmm Servo Spindle Setup Mach 3

    Quote Originally Posted by Jim Dawson View Post
    I think that depends on which firmware rev. you have, the newer systems are 500 minimum. All of the ones that I have bought in the last 1.5 years have been 500 minimum.
    They have always been 500 from day one
    Mactec54

  9. #9
    Join Date
    Aug 2009
    Posts
    20

    Re: Dmm Servo Spindle Setup Mach 3

    I figured out how to get it to work.

    -I got another DMM breakout board
    -Attached ribbon cable from ESS port 3 to dmm BOB
    -connected cable going from Dyn4 drive to X axis connector plug on new dmm BOB.
    -Set port and pins for spindle to port 3 pin ( whatever the dmm bob pins are for step and direction for x axis)
    -To get the rpm to be correct I had to go to motor tuning in mach 3 and adjust that acc/velocity graph.
    -There a couple things I think I had to also change in ess config page in mach 3
    - Also was able to connect a cnc4pc pulse indexer to c10 bob so mach 3 can show rpm.

    Tomorrow I can take pics of relevant screens

  10. #10
    Join Date
    Jan 2005
    Posts
    15362

    Re: Dmm Servo Spindle Setup Mach 3

    Quote Originally Posted by usmarine21m View Post
    I figured out how to get it to work.

    -I got another DMM breakout board
    -Attached ribbon cable from ESS port 3 to dmm BOB
    -connected cable going from Dyn4 drive to X axis connector plug on new dmm BOB.
    -Set port and pins for spindle to port 3 pin ( whatever the dmm bob pins are for step and direction for x axis)
    -To get the rpm to be correct I had to go to motor tuning in mach 3 and adjust that acc/velocity graph.
    -There a couple things I think I had to also change in ess config page in mach 3
    - Also was able to connect a cnc4pc pulse indexer to c10 bob so mach 3 can show rpm.

    Tomorrow I can take pics of relevant screens
    Cool glad you got it figured out look forward to seeing your configuration I'm sure it will help someone else
    Mactec54

  11. #11
    Join Date
    Dec 2013
    Posts
    5717

    Re: Dmm Servo Spindle Setup Mach 3

    The minimum step count / rev is 500 (Gear Number), so at the max speed of 3000 RPM (50 rev/sec) would be 25,000 steps/sec. Given the limitations of Mach3, new firmware might be a good plan. It's my understanding that Mach3 is good for 25K to 100K steps/sec depending on your computer.
    Jim Dawson
    Sandy, Oregon, USA

  12. #12
    Join Date
    Jan 2005
    Posts
    15362

    Re: Dmm Servo Spindle Setup Mach 3

    Quote Originally Posted by Jim Dawson View Post
    The minimum step count / rev is 500 (Gear Number), so at the max speed of 3000 RPM (50 rev/sec) would be 25,000 steps/sec. Given the limitations of Mach3, new firmware might be a good plan. It's my understanding that Mach3 is good for 25K to 100K steps/sec depending on your computer.
    It has nothing to do with Mach3 when you are using a SmoothStepper even with a UC100 he can have a 100K SmoothStepper he can be set up to 4Mhz so does not need any firmware changed to get the max from his motor
    Attached Thumbnails Attached Thumbnails Step Rate 4Mhz.PNG  
    Mactec54

  13. #13
    I'll check Gerry's post to see if there's anything else I can do.
    Greetings.

  14. #14
    I'll check Gerry's post to see if there's anything else I can do.
    Greetings.


    Jerome
    ---------
    Expert in dc motor speed control at Kelvin

  15. #15
    Join Date
    Sep 2009
    Posts
    38

    Re: Dmm Servo Spindle Setup Mach 3

    Have you read through the smoothstepper documentation. It looks pretty straight forward and step by step. https://warp9td.com/index.php/gettin...epper-and-mach
    The other thing is you will need to set the DMM software to step and direction, and probably be good idea to set the gear number to 500 to net 2000 steps per rev.
    What DMM servo are you running there is a 3000 and 5000 rpm version rated at 750 watt?

  16. #16
    Join Date
    Jan 2005
    Posts
    15362

    Re: Dmm Servo Spindle Setup Mach 3

    Quote Originally Posted by HCE View Post
    Have you read through the smoothstepper documentation. It looks pretty straight forward and step by step. https://warp9td.com/index.php/gettin...epper-and-mach
    The other thing is you will need to set the DMM software to step and direction, and probably be good idea to set the gear number to 500 to net 2000 steps per rev.
    What DMM servo are you running there is a 3000 and 5000 rpm version rated at 750 watt?
    Most usually use the 1.8Kw motor which is 3000 max anything below 1Kw would not be much good as a spindle motor
    Mactec54

  17. #17
    Join Date
    Dec 2016
    Posts
    19

    Re: Dmm Servo Spindle Setup Mach 3

    Did you end up getting this sorted out? Im running an almost identical setup and might be able to shed some light on settings

  18. #18
    Join Date
    Jan 2005
    Posts
    15362

    Re: Dmm Servo Spindle Setup Mach 3

    Quote Originally Posted by Danno11 View Post
    Did you end up getting this sorted out? Im running an almost identical setup and might be able to shed some light on settings
    It is always good to post what you have done, even if it is a different setup there will be someone that it will help or give them and idea of where / how to start
    Mactec54

  19. #19
    Join Date
    Aug 2009
    Posts
    20

    Re: Dmm Servo Spindle Setup Mach 3

    nope, just got confused.
    Just wanna know how to set the servo up with mach 3, ess, and the dmm breakout board. I'm using a 2:1 gear ratio running dyn4 drives at 240v, so i'll be getting 6000 rpm. I want to be able to run the servo with mach 3 using m3 s#### codes
    I was hoping for a really simple explanation of what I needed to do to get it working right.

  20. #20
    Join Date
    Jan 2016
    Posts
    79

    Re: Dmm Servo Spindle Setup Mach 3

    Quote Originally Posted by usmarine21m View Post
    nope, just got confused.
    Just wanna know how to set the servo up with mach 3, ess, and the dmm breakout board. I'm using a 2:1 gear ratio running dyn4 drives at 240v, so i'll be getting 6000 rpm. I want to be able to run the servo with mach 3 using m3 s#### codes
    I was hoping for a really simple explanation of what I needed to do to get it working right.

    USMarine, I have a similar setup and will be doing the same thing soon. I did some research to ensure that I'll be able to rigid tap, and get the full value from the Servo spindle. The best method that I have found is not to use the typical SwapAxis method, but rather simply using BOTH the Spindle step/dir pins and the A-axis step/dir pins both set to the same output ports/pins in Mach3. The wiring will be just as you did XYZ with step/dir wires feeding from your BOB to the DMM driver's pins 11 & 22 (5V) and pins 10 and 23 (output pins from your BOB) . When you need to tap, you'll use A axis G-code.There is a video on Youtube demonstrating this method, and it appears to work well.

    https://www.youtube.com/watch?v=vAwoXs2c6GY

    There may be better methods, but this is the best I've stumbled across and what I plan to use once I have time to finish up the servo spindle motor mounts, etc. Chime back if you find a better method, many of us would appreciate the guidance.

    -Mike

Page 1 of 2 12

Similar Threads

  1. Spindle/Mach 3 setup questions for idiots from Maine!
    By Barefootboy4 in forum Spindles / VFD
    Replies: 6
    Last Post: 08-14-2017, 05:43 PM
  2. Can i use/setup a servo motor as spindle in mach3
    By schwinndk in forum Mach Software (ArtSoft software)
    Replies: 3
    Last Post: 03-06-2010, 07:00 PM
  3. X4 spindle setup in Mach 3
    By andy_rb in forum Syil Products
    Replies: 1
    Last Post: 02-07-2010, 08:09 PM
  4. Can MACH generate +/- 10V to control SERVO spindle Drive?
    By cjchands in forum Mach Software (ArtSoft software)
    Replies: 2
    Last Post: 07-23-2007, 03:58 AM
  5. servo setup questions for mach 3
    By planeflier in forum Mach Mill
    Replies: 2
    Last Post: 06-06-2006, 02:08 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •